<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>背景练习</title>
    <style>
        body {
            background-color: #a8d8ec;
            background-image: url("img/PIC.JPG");
            background-repeat: no-repeat;
            background-position: 100px 50px;
        }
        h2 {
            text-align: center;
            color: blue;
            font-family: 微软雅黑;
        }
    </style>
</head>
<body>
    <h2>背景CSS练习</h2>
</body>
</html>